Celebrity Parents Jessica Simpson's 4-Year-Old Son Debuts Shaggy Cut After Chopping Off His Long Blond Hair Jessica Simpson and Eric Johnson's younger child, 4-year-old Ace Knute, ditched his signature long locks for an adorable new look By Jen Juneau Jen Juneau Twitter Jen Juneau is a digital news writer for PEOPLE since 2016. People Editorial Guidelines Published on September 11, 2017 12:30 PM Share Tweet Pin Email Photo: Jessica Simpson/Instagram Ace Knute just got his first cut! The younger child of Jessica Simpson and husband Eric Johnson looks all 4 years of his age in a sweet photo Simpson, 37, shared to Instagram Wednesday. Ace’s signature shoulder-length blond locks have been sheared to reveal a shorter, yet still adorably shaggy cut as the little guy wades in the water in front of a stunning mountainous landscape. “First haircut ✔️ (Thanks @jessieholiday for making my stud look all grown up 😢) #ACEKNUTE,” the proud mama captioned the memory. Want all the latest pregnancy and birth announcements, plus celebrity mom blogs? Click here to get those and more in the PEOPLE Babies newsletter. RELATED VIDEO: Jessica Simpson Reveals She Has an IUD and Won’t be Having Any More Kids, Thank You Very Much It’s been an emotional milestone-laden time for the mom of two. Last week, she shared a photo of 5-year-old daughter Maxwell “Maxi” Drew, decked out in her first-day-of school best and striking a precious pose for the camera. “KINDERGARTEN 📚😢 #MAXIDREW,” Simpson wrote alongside the snap of her mini-me. FROM PEN: Former Bachelorette DeAnna Pappas Stagliano is Already Dreading her Infant Son’s Future Wedding Baby It’s Hot Outside! Jessica Simpson’s Sexy Summer Style The school year may be in full swing now, but Simpson’s little ones have some amazing summer memories to keep with them — including a Moana-themed bash the singer and fashion designer threw for Ace’s 4th birthday in June. “May wish #4 come true my beautiful baby boy,” Simpson wrote on Instagram alongside a snap of the birthday boy surrounded by balloons and a colorful cake.